I stand corrected, the power supplies you find for electronics do have transformers in them that provide galvanic isolation. I guess I’ve spent too much time l

I stand corrected, the power supplies you find for electronics do have transformers in them that provide galvanic isolation. I guess I’ve spent too much time looking at high voltage (measured in kV) power electronics used in HVDC transmission, it didn’t occur to me that household electronics would use a slightly different approach.